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Off-axis guider adapters for G3 and G4 cameras are equipped with M68 × 1 thread on the telescope side in the distance 61.5 mm from the detector. Two variants (for G3 cameras and for G4 cameras) differ in the mounting holes placement and also in the distance of the reflecting mirror from the optical axis.

Off-axis guider adapters for G3 and G4 cameras are equipped with M68 × 1 thread on the telescope side in the distance 61.5 mm from the detector. Two variants (for G3 cameras and for G4 cameras) differ in the mounting holes placement and also in the distance of the reflecting mirror from the optical axis.

Off-axis guider adapters for G3 and G4 cameras are equipped with M68 × 1 thread on the telescope side in the distance 61.5 mm from the detector. Two variants (for G3 cameras and for G4 cameras) differ in the mounting holes placement and also in the distance of the reflecting mirror from the optical axis.

The mirror used to deflect light to guiding camera has 10 × 7 mm front cross-section (mirror dimensions are 10 × 10 mm, but the mirror is angled at 45 degrees). This is enough for guiding cameras with very large 2/3" format detectors without any significant vignetting (smallest detectors used in G0/G1 guiders is of 1/3" format, but numerous guiding cameras use 1/4" or even smaller chips).